Hot sensitive print technology of key is heating components, hot sensitive printer core Shang has a row tiny of Semiconductor components, these components row have is key, from 200dpi to 600dpi ranging, these components in through must current is will soon produced high temperature, dang hot sensitive paper have coating encountered these components Shi, in very short of time within temperature on will increased, hot sensitive paper Shang have coating on will occurred chemical reactions, show color.

Thermal printers receive print data, converts the print data for the bitmap data, and follow the core control printer bitmap data on the heating elements by current contents printed on the print data.